/// <summary>
/// Initializes a new instance of the <see cref="MediaElement" /> class.
/// </summary>
public MediaElement()
: base()
{
ContentGrid = new Grid {
Name = nameof(ContentGrid)
};
Content = ContentGrid;
ContentGrid.HorizontalAlignment = HorizontalAlignment.Stretch;
ContentGrid.VerticalAlignment = VerticalAlignment.Stretch;
ContentGrid.Children.Add(ViewBox);
Stretch = ViewBox.Stretch;
StretchDirection = ViewBox.StretchDirection;
Logger = new GenericMediaLogger <MediaElement>(this);
mediaElementCore = new MediaElementCore(this, WPFUtils.IsInDesignTime);
if (WPFUtils.IsInDesignTime)
{
// Shows an FFmpeg image if we are in design-time
var bitmap = Properties.Resources.FFmpegMediaElementBackground;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(
bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
var controlBitmap = new WriteableBitmap(bitmapSource);
ViewBox.Source = controlBitmap;
}
else
{
// Bind to RoutedEvent events
mediaElementCore.MediaOpening += (s, e) => RaiseMediaOpeningEvent();
mediaElementCore.MediaOpened += (s, e) => RaiseMediaOpenedEvent();
mediaElementCore.MediaClosed += (s, e) => RaiseMediaClosedEvent();
mediaElementCore.MediaFailed += (s, e) => RaiseMediaFailedEvent(e.Exception);
mediaElementCore.MediaEnded += (s, e) => RaiseMediaEndedEvent();
mediaElementCore.BufferingStarted += (s, e) => RaiseBufferingStartedEvent();
mediaElementCore.BufferingEnded += (s, e) => RaiseBufferingEndedEvent();
mediaElementCore.SeekingStarted += (s, e) => RaiseSeekingStartedEvent();
mediaElementCore.SeekingEnded += (s, e) => RaiseSeekingEndedEvent();
// Bind to non-RoutedEvent events
mediaElementCore.MessageLogged += (o, e) => MessageLogged?.Invoke(this, e);
mediaElementCore.PositionChanged += (s, e) => PositionChanged?.Invoke(this, e);
// Bind to INotifyPropertyChanged event: PropertyChanged
mediaElementCore.PropertyChanged += MediaElementCore_PropertyChanged;
}
m_Metadata = CollectionViewSource.GetDefaultView(mediaElementCore.Metadata) as ICollectionView;
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaElement" /> class.
/// </summary>
public MediaElement()
: base()
{
Content = ViewBox;
Stretch = ViewBox.Stretch;
StretchDirection = ViewBox.StretchDirection;
Logger = new GenericMediaLogger <MediaElement>(this);
Commands = new MediaCommandManager(this);
if (Utils.IsInDesignTime)
{
// Shows an FFmpeg image if we are in design-time
var bitmap = Properties.Resources.FFmpegMediaElementBackground;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero,
Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
var targetBitmap = new WriteableBitmap(bitmapSource);
ViewBox.Source = targetBitmap;
}
else
{
// The UI Property update timer is responsible for timely updates to properties outside of the worker threads
UIPropertyUpdateTimer = new DispatcherTimer(DispatcherPriority.DataBind)
{
Interval = Constants.UIPropertyUpdateInterval,
IsEnabled = true
};
// The tick callback performs the updates
UIPropertyUpdateTimer.Tick += (s, e) =>
{
UpdatePosition(IsOpen ? Clock?.Position ?? TimeSpan.Zero : TimeSpan.Zero);
var downloadProgress = Math.Min(1d, Math.Round((Container?.Components.PacketBufferLength ?? 0d) / DownloadCacheLength, 3));
if (double.IsNaN(downloadProgress))
{
downloadProgress = 0;
}
DownloadProgress = downloadProgress;
};
// Go ahead and fire up the continuous updates
UIPropertyUpdateTimer.Start();
}
m_MetadataBase = new ObservableCollection <KeyValuePair <string, string> >();
m_Metadata = CollectionViewSource.GetDefaultView(m_MetadataBase) as ICollectionView;
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaElement" /> class.
/// </summary>
public MediaElement()
: base()
{
ContentGrid = new Grid {
Name = nameof(ContentGrid)
};
Content = ContentGrid;
ContentGrid.HorizontalAlignment = HorizontalAlignment.Stretch;
ContentGrid.VerticalAlignment = VerticalAlignment.Stretch;
ContentGrid.Children.Add(ViewBox);
Stretch = ViewBox.Stretch;
StretchDirection = ViewBox.StretchDirection;
Logger = new GenericMediaLogger <MediaElement>(this);
Commands = new MediaCommandManager(this);
if (Utils.IsInDesignTime)
{
// Shows an FFmpeg image if we are in design-time
var bitmap = Properties.Resources.FFmpegMediaElementBackground;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(
bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
var controlBitmap = new WriteableBitmap(bitmapSource);
ViewBox.Source = controlBitmap;
}
else
{
// The UI Property update timer is responsible for timely updates to properties outside of the worker threads
// We use the loaded priority because it is the priority right below the Render one.
UIPropertyUpdateTimer = new DispatcherTimer(DispatcherPriority.Loaded)
{
Interval = Constants.UIPropertyUpdateInterval,
IsEnabled = true
};
// The tick callback performs the updates
UIPropertyUpdateTimer.Tick += (s, e) =>
{
UpdatePosition(IsOpen ? Clock?.Position ?? TimeSpan.Zero : TimeSpan.Zero);
if (HasMediaEnded == false && CanReadMorePackets && (IsOpening || IsOpen))
{
var bufferedLength = Container?.Components?.PacketBufferLength ?? 0d;
BufferingProgress = Math.Min(1d, bufferedLength / BufferCacheLength);
var oldIsBugffering = IsBuffering;
var newIsBuffering = bufferedLength < BufferCacheLength;
if (oldIsBugffering == false && newIsBuffering == true)
{
RaiseBufferingStartedEvent();
}
else if (oldIsBugffering == true && newIsBuffering == false)
{
RaiseBufferingEndedEvent();
}
IsBuffering = HasMediaEnded == false && newIsBuffering;
}
else
{
BufferingProgress = 0;
IsBuffering = false;
}
var downloadProgress = Math.Min(1d, Math.Round((Container?.Components.PacketBufferLength ?? 0d) / DownloadCacheLength, 3));
if (double.IsNaN(downloadProgress))
{
downloadProgress = 0;
}
DownloadProgress = downloadProgress;
};
// Go ahead and fire up the continuous updates
UIPropertyUpdateTimer.Start();
}
m_MetadataBase = new ObservableCollection <KeyValuePair <string, string> >();
m_Metadata = CollectionViewSource.GetDefaultView(m_MetadataBase) as ICollectionView;
}
